非道路柴油机缸筒芯的快速改型工艺

Rapid Trim-Mold Technology Used in Cylinder Core of Off-Road Diesel Engine

在柴油机缸体新产品的开发过程中,往往使用模具造型(芯)、无模数字化精密成形技术切削成形、喷墨3D打印成形等方法先制造砂型,再将金属液浇注入砂型中形成铸件,但是上述制备砂型的方法有的造型周期长、有的砂型制造成本高。因此,本文研究了一种快速改型方法,将原有砂型改造成为可以再次用于缸体新产品生产的新砂型,使缸体新产品开发过程中砂型制造成本降低39.2%,具有较好的推广应用价值。

In the development process of new products of diesel engine cylinder block,the sand molds are made firstly by the methods such as sand molding(core)method,digital precision molding technology without mold cutting or inkjet 3D printing molding.Then the molten metal is poured into the sand mold to form the casting.However,the above methods for preparing sand molds have long molding cycles or high manufacturing costs.Therefore,this paper has studied a rapid reshaping method to transform the original sand mold into a new sand mold that can be used again for the production of new cylinder block products,which has reduced the sand mold manufacturing cost by 39.2%in the process of product development of the cylinder block,this method has good promotion and application value.